The Trump administration on Thursday sued New York City over local laws that limit cooperation with federal immigration enforcement, saying the statutes unlawfully thwart immigration arrests and conflict with federal immigration law.

The action comes days after an off-duty Customs and Border Protection officer was shot in the face during an ambush robbery attempt.

In a lawsuit filed in Brooklyn on Thursday, federal prosecutors accused the city and several of its officials of seeking “to obstruct federal law enforcement” in violation of the constitution’s Supremacy Clause, which holds that the constitution and federal laws generally prevail over conflicting state laws.